Emil Lederer’s signed encyclopedia subsection, originally published in 1930 and republished in the documented 1937 version, explains Chinese agriculture through the interdependence of population density, intensive cultivation, irrigation, and rural poverty. Its central problem is how farming that extracts extraordinarily high yields from limited land can nevertheless provide little more than subsistence. Moving from population and regional crops to agricultural techniques, political administration, living conditions, and prospects for development, Lederer distinguishes productivity per unit of soil from income per family. His conclusion is that neither commercial integration nor increased production necessarily improves living standards when population growth absorbs the gains.
The opening establishes a reciprocal relationship rather than treating population simply as an external pressure on agriculture:
On the other hand the population is itself affected by the unusually intensive agriculture.
Dense settlement demands intensive cultivation, but cultivation also supports dense settlement. Lederer illustrates the scale with estimates of inhabitants per square mile of cultivated land: provincial figures range from hundreds to several thousand, against 61 persons per square mile of arable land in the United States in 1900. These comparisons establish the exceptional pressure on Chinese farmland, though the figures are presented as estimates rather than as a uniform statistical survey. Most of the population, he adds, depends on agriculture without substantial supplementary industry.
Regional differentiation qualifies this general picture. Southern agriculture centres on wet rice, alongside sugar cane, cotton, tea, bamboo, and mulberry cultivation for silkworms. In the north, Lederer emphasizes loess soils and timely rainfall, supporting cereals and dry-land rice without the same dependence on artificial irrigation. Soy beans have acquired export importance, while cotton is significant in particular provinces. Rice nevertheless anchors the national economy, both as food and as the basis of a major financial enterprise.
The account of rice cultivation makes clear that intensive farming means painstaking organization of land, nutrients, and labour, not sophisticated machinery. Seedlings grow in small nursery areas for nine or ten weeks, permitting another crop to mature in the fields before transplantation. Human waste and urban accumulations return nutrients to the soil; fertilizer mixed with earth creates a medium for young plants. Lederer condenses the contrast between agricultural skill and technical equipment:
These methods are all very simple and to the point; they are practised with minutest care, excessive work and the most primitive tools.
High land productivity therefore coexists with heavy labour demands and rudimentary implements. The small farm is not represented as inefficient in its use of soil: it is precisely where cultivation reaches its greatest intensity. This distinction underlies Lederer’s later doubt that new fertilizers could yield substantial additional output.
The discussion then shifts from cultivation to the institutions sustaining it. After acknowledging uncertainty about the destruction of ancient feudalism and the origins of China’s political system, Lederer identifies water management as a material foundation of administration. Irrigation requires distribution among small parcels and coordination of competing interests. Farmers depend on reliable water, while the state depends on agricultural yields for regular taxation:
Irrigation thus forms a foundation for the development of an extensive administration, a connection which Max Weber has shown to have existed also in the history of Egypt.
The argument connects agricultural organization with state formation without claiming to resolve China’s obscure political origins. Lederer also notes that local administration maintained water supplies after central political power declined. The canal network consequently appears both as productive infrastructure and as evidence of institutional continuity.
Transport explains a different kind of continuity: the persistence of self-sufficient villages outside wider divisions of labour. Human carriage and primitive roads restrict marketing, leaving waterways as crucial freight routes. Much produce is consumed at home, and extensive cultivation yields meagre household returns. Lederer describes limited diets, scarce meat, inadequate livestock, poor housing, scant fuel, and worn clothing. These are consequences of an economy organized around subsistence, with pressure to devote the soil’s yield directly to human consumption. Tenancy adds another burden where landlords take a substantial share of the crop; in such areas he links deprivation to radical peasant movements.
Agricultural stability is thus inseparable from poverty and isolation. Despite political upheaval and industrial development, the rural economy has changed little. Roads and railways could alter this situation, while demand for petroleum lighting and tobacco already encourages peasants to market produce. Yet Lederer separates increased exchange from increased agricultural capacity. More promising than extracting still higher yields from the soil is using winter months for home industry or seasonal factory employment, especially in the north.
His final qualification makes demographic behaviour decisive:
Yet even if certain possibilities of development are conceded, under present circumstances they would fail to yield a larger income per family.
Lederer expects additional production to support additional population rather than lasting gains in household welfare. He connects this tendency to the valuation of large families and inheritance divided among sons, which repeatedly fragments holdings. Birth control becomes his stated condition for a decisive improvement in living standards. The subsection’s relevance lies in its compact analysis of how agronomic accomplishment can coexist with deprivation. Its strongest conceptual move is to distinguish intensive land use from prosperity; its limiting assumption is the confidence with which demographic growth is expected to absorb developmental gains.
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